FURANIC COPOLYMERS WITH SYNTHETIC AND NATURAL PHENOLIC MATERIALS FOR WOOD ADHESIVES - A MALDI TOF STUDY
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Universidad del Bío Bío
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The structure of traditional, linear phenolformaldehyde (PF) resins and phenolfurfural (PFuran) resins has been investigated by matrixassisted laser desorption/ionization time of flight (MALDITOF) mass spectroscopy. The structure of a variety of oligomers has been obtained and the structures present in each of the two types of resins related to the reagent used either formaldehyde or furfural. The oligomers type and species distribution appeared rather different for each case. Comparison of a PFuran resin with a Mimosa tanninFuran resin showed some differences. This latter shows a greater proportion of selfcondensed fuanic oligomers due to the manner in which it is prepared starting from furfuryl alcohol. Several different Tannin Furan oligomers were also observed by MALDITOF analysis.
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